On Thu, Jul 27, 2023 at 11:47:48AM +0200, Ahmad Fatoum wrote: > CONFIG_RSA_KEY and CONFIG_BOOTM_FITIMAGE_PUBKEY can both point at the > RSA public key, but with different formats. CONFIG_RSA_KEY is probably > easier to integrate, so reference it from CONFIG_BOOTM_FITIMAGE_PUBKEY > and be explicit about the different formatting. > --- > common/Kconfig | 11 ++++++++--- > crypto/Kconfig | 3 +++ > 2 files changed, 11 insertions(+), 3 deletions(-) Applied, thanks Sascha > > diff --git a/common/Kconfig b/common/Kconfig > index 3a57e16b3be6..0c7ba6a63685 100644 > --- a/common/Kconfig > +++ b/common/Kconfig > @@ -644,9 +644,10 @@ config BOOTM_FITIMAGE_PUBKEY_ENV > bool "Specify path to public key in environment" > depends on BOOTM_FITIMAGE_SIGNATURE > help > - If this option is enabled the path to the public key for verifying > - FIT images signature is taken from environment which allows for > - better integration with build systems. > + If this option is enabled the path to the device tree snippet > + containing the public key for verifying FIT images signature is taken > + from make's build-time environment, which can allow for better > + integration with some build systems. > > The environment variable has the same name as the corresponding > Kconfig variable: > @@ -664,6 +665,10 @@ config BOOTM_FITIMAGE_PUBKEY > snippet can then be included in a device tree with > "#include CONFIG_BOOTM_FITIMAGE_PUBKEY". > > + This snippet is usually generated by decompiling a device tree produced > + by mkimage. An alternative is CONFIG_CRYPTO_RSA_KEY, which takes a PEM > + file or a PKCS#11 URI. > + > endif > > config BOOTM_FORCE_SIGNED_IMAGES > diff --git a/crypto/Kconfig b/crypto/Kconfig > index 629f615de1af..04e5ef43705b 100644 > --- a/crypto/Kconfig > +++ b/crypto/Kconfig > @@ -130,6 +130,9 @@ config CRYPTO_RSA_KEY > X.509 certificates to be included into barebox. If the string starts > with "pkcs11:" it is interpreted as a PKCS#11 URI rather than a file. > > + This avoids the mkimage dependency of CONFIG_BOOTM_FITIMAGE_PUBKEY > + at the cost of an openssl build-time dependency. > + > config CRYPTO_RSA_KEY_NAME_HINT > depends on CRYPTO_RSA > string "FIT image key name hint" > -- > 2.39.2 > > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
